[Solved] Computer Graphics, Lab Assignment 8

Computer Graphics, Lab Assignment 8

+ LabAssignment2/

+ 1/

• py

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• py

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• py

• The submission time is determined not when the commit is made but when the git push is made.

1. Write a program that draws a color-changing cube.
   1. Set the window title to your student ID and the window size to (480,480).
   2. Start from the code in 7-Lighting&Shading slides. Draw a flat-shaded cube. Make sure camera manipulation shortcuts 1, 3, 2, w work. C. Use the following light setting:

lightPos = (3.,4.,5.,1.)

glLightfv(GL_LIGHT0, GL_POSITION, lightPos)

ambientLightColor = (.1,.1,.1,1.) glLightfv(GL_LIGHT0, GL_AMBIENT, ambientLightColor)

specularObjectColor = (1.,1.,1.,1.) glMaterialfv(GL_FRONT, GL_SPECULAR, specularObjectColor)

glMaterialfv(GL_FRONT, GL_SHININESS, 10)

1. If you press or repeat a key, the diffuse & specular color of the light and the ambient & diffuse color of the object should be changed as shown in the Table:

Key	Action
A	Change the light color to red
S	Change the light color to green
D	Change the light color to blue
F	Change the light color to white
Z	Change the object color to red
X	Change the object color to green
C	Change the object color to blue
V	Change the object color to white

1. Files to submit: A Python source file (Name the file whatever you want (in English). Extension should be .py)

2. Write a program that draws a smooth-shaded cube.
   1. Set the window title to your student ID and the window size to (480,480).
   2. Start from the code in 8-Lighting&Shading slides. Make sure camera manipulation shortcuts 1, 3, 2, w work.
   3. Use glDrawElements(), not glDrawArray(). Refer the code in 7-Hierarchy&Mesh slides.
   4. Hint: In Gouraud shading, one vertex has only one normal. This makes using glDrawElements() easier.
   5. Use the following normal vector data:

1. Files to submit: A Python source file (Name the file whatever you want (in English). Extension should be .py)